Hi Ramakrishnan
NIt Surathkal is above in the preference than NIT Calicut, but considering the branches , cs in NIT Calicut is a better option than civil in surathkal. well, its entirely on you which branch interests you the most, computer science or civil. If u consider the placement data then NIT Calicut computer Science has done good. around 5.8 lakhs annum salary at the time of recession is a good job.www.nitc.ac.in/nitc/TandP/index.htm
 Even the IITs have also managed to get only about 6-7 lakhs as the average overall packages for all the departments cumulative this year. Computer science is always a better choice over civil engg. Training and placement site for the NIT Surathkal is not accessible, else i wud have given you the link.
Both NIT Surathkal and Calicut are finely established engg colleges with a good repo. Its entirely your choice of branch that you should focus upon. if you want to compare the opening and closing ranks for the various NIT's u can use the linkwww.askiitians.com/aieee-counselling/aieee-engineering-counsellings.aspx